Work out the formula of :) Ammonia

Work out the formula of : carbon tetrachloride

Work out the formula of :Carbon dioxide

In compouting the area of a square,Shekhar used the formula for area of a square,while his friend Marooof used the formula for perimeter of a square.Interestingly their answers were numerically same.Tell me the number of units of the side of the square they worked out.

Work out the following divisions : (10x – 25) -: 5

Work out the following divisions : (10x – 25) -: (2x – 5)

Work out the following divisions : 96abc(3a – 12) (5b – 30) -: 144(a – 4) (b – 6)

Work out the following divisions : 9x^2y^2 (3z – 24) -: 27xy(z – 8)

Work out the following divisions : 10y(6y + 21) -: 5(2y + 7)